1 files changed, 75 insertions, 0 deletions
diff --git a/include/svtools/openfiledroptargetlistener.hxx b/include/svtools/openfiledroptargetlistener.hxx
new file mode 100644
index 000000000..56f983e20
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+++ b/include/svtools/openfiledroptargetlistener.hxx
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <config_options.h>
+#include <svtools/svtdllapi.h>
+
+#include <com/sun/star/datatransfer/dnd/XDropTargetListener.hpp>
+
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/weakref.hxx>
+
+#include <sot/exchange.hxx>
+
+namespace com :: sun :: star :: frame { class XFrame; }
+
+namespace com::sun::star::uno {
+    class XComponentContext;
+}
+
+/** DropTargetListener that takes care of opening a file when it is dropped in the frame.
+*/
+class UNLESS_MERGELIBS(SVT_DLLPUBLIC) OpenFileDropTargetListener final : public cppu::WeakImplHelper< css::datatransfer::dnd::XDropTargetListener >
+{
+    private:
+        /// uno service manager to create necessary services
+        css::uno::Reference< css::uno::XComponentContext > m_xContext;
+
+        /// weakreference to target frame (Don't use a hard reference. Owner can't delete us then!)
+        css::uno::WeakReference< css::frame::XFrame > m_xTargetFrame;
+
+        /// drag/drop info
+        DataFlavorExVector m_aFormats;
+
+    public:
+        OpenFileDropTargetListener( const css::uno::Reference< css::uno::XComponentContext >& xContext,
+                                    const css::uno::Reference< css::frame::XFrame >& xFrame );
+        virtual ~OpenFileDropTargetListener() override;
+
+    public:
+        // XEventListener
+        virtual void SAL_CALL disposing        ( const css::lang::EventObject& Source ) override;
+
+        // XDropTargetListener
+        virtual void SAL_CALL drop             ( const css::datatransfer::dnd::DropTargetDropEvent&      dtde  ) override;
+        virtual void SAL_CALL dragEnter        ( const css::datatransfer::dnd::DropTargetDragEnterEvent& dtdee ) override;
+        virtual void SAL_CALL dragExit         ( const css::datatransfer::dnd::DropTargetEvent&          dte   ) override;
+        virtual void SAL_CALL dragOver         ( const css::datatransfer::dnd::DropTargetDragEvent&      dtde  ) override;
+        virtual void SAL_CALL dropActionChanged( const css::datatransfer::dnd::DropTargetDragEvent&      dtde  ) override;
+
+    private:
+        void     implts_BeginDrag( const css::uno::Sequence< css::datatransfer::DataFlavor >& rSupportedDataFlavors );
+        void     implts_EndDrag();
+        bool     implts_IsDropFormatSupported( SotClipboardFormatId nFormat );
+        void     implts_OpenFile( const OUString& rFilePath );
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */